From 0a232d6136ee1e2975ad1e6f491ba2117ae16eaf Mon Sep 17 00:00:00 2001
From: Dinesh V B <dbabu@ztech.io>
Date: Wed, 18 Nov 2020 12:54:14 +0530
Subject: [PATCH] issue-2916-rebased to master branch

---
 .../extension_attributes/adding-attributes.md          | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/guides/v2.3/extension-dev-guide/extension_attributes/adding-attributes.md b/src/guides/v2.3/extension-dev-guide/extension_attributes/adding-attributes.md
index a38bb3103af..57bec8ae229 100644
--- a/src/guides/v2.3/extension-dev-guide/extension_attributes/adding-attributes.md
+++ b/src/guides/v2.3/extension-dev-guide/extension_attributes/adding-attributes.md
@@ -175,7 +175,9 @@ Now we need to bind our plugin to `ProductInterface`:
 
 ## Extension Attributes Configuration:
 
-For scalar attributes we can use next configuration:
+The file that holds these extension attributes must reside under the `/etc` folder of your module.
+
+For scalar attributes, we can use the following configuration:
 
 ```xml
 <config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Api/etc/extension_attributes.xsd">
@@ -186,6 +188,8 @@ For scalar attributes we can use next configuration:
 </config>
 ```
 
+Here, the scalar attributes indicate the simple form of attribute representation, such as an integer or a string. Specify the class or interface of the extension attributes inside the "for" attribute of the `<extension_attributes>` tag. In this case, it is the ProductInterface. The attribute is specified with a unique code and its type.
+
 For non-scalar attributes:
 
 ```xml
@@ -196,6 +200,8 @@ For non-scalar attributes:
 </config>
 ```
 
+Here, the non-scalar attributes indicate data objects such as the instance of a class. In the above example, the CustomDataInterface object is added as an extension attribute.
+
 For array extension attributes:
 
 ```xml
@@ -206,6 +212,8 @@ For array extension attributes:
 </config>
 ```
 
+The array extension attributes are just an extension of the scalar attributes where a range of values can be represented as an attribute. The `[]` symbol indicates the attribute type is an array.
+
 The array indicator `[]` can also be appended to non-scalar types.
 
 In first - scalar - case we will get the next result: